Stopper for jars



(ModeL) W. W. GUPTILL.

STOPPER FOR JARS, 650.

No. 326,641. Patented Sept. 22, 1885.

JWM am UNITED STATES PATENT OFFICE.

YVINSLOYV V. GUPTILL, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE HARTFORD FRUIT J AR COMPANY, OF HARTFORD, CONNECTICUT.

STOPPER FOR JARS, 8 0.

SPECIFICATION forming part of Letters Patent No. 326,641, dated September 22, 1885.

Application filed July 10, 1885. (Model.)

To all whom it may concern.-

Be it known that I, W INsLow W. GUPTILL, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Stoppers for Bottles and Jars, of which the following is a description, reference being had to the accompanying drawings, where- Figure l is a top View of my improved stop- 10 per. Fig. 2 is a front view of the same,with the neck of the jar to which it is fitted shown as cut in central vertical section, the parts of the stopper being shown as tightly closed to seal thejar. Fig. 3 is a like View, with the parts of the stopper loosened for removal from the jar. The yoke is cut away for clearness of View. Fig. 4is a front view of the stopper with the elastic ring removed and the metal plate dropped upon the flange on the stopper 2c to show the method of assembling the parts. Fig. 5 is a view in central cross-section of the device on a plane diametrically through the pivots on the lever.

My within described invention relates to 2 and is an improvement on the device that forms the subjectmatter of the United States Letters Patent granted to me September 2, 1884, No. 304,812; and it consists in the combination of the flanged cover, loose ring with beveled lower surface, elastic gasket, and the yoke bearing the locking-cams, as more particularly hereinafter described.

In the accompanying drawings, theletter a denotes a bottle or jar having preferably within the mouth thegroove a; b, the cover, preferablyof glass or the like acid resisting material, made up of the disk -shaped bottom part, b, that fits loosely within the mouth of the jar and has on its upper side the beveled 4o edge b the stem 1), and the flanged or broadened cap If; e c, the tightener plate; (I, the elastic gasket, preferablya ring of rubber that forms the packing, and e the yoke-shaped lever bearing the pivots e and cams a The tightener-plate 0 is a fiat ring of metal or the like rigid material that is larger in outside diameter than the mouth of the jar, so that it overhangs the top of the latter, or it may have one or more proj cot-in g arms that serve equally to prevent the cover from slipping into the jar. On the bottom of the tightener, and in one piece therewith, is an annular flange with. the bevel c, the flange being of substantially the diameter of the disk -shaped bottom part ofthe cover I), the bevels on the disk and on the flange of the tightener cooperating when the parts are forced toward each otherto compress between them and thus thrust outward the elastic packing ring (I that lies between them when the parts are assembled for use in the stopper. O11 the top of the tightener are formed the open pivot sockets or bearings c, that are arranged diametrically opposite each other, and into these fit and turn the pivots e on the lever 6. These pivots are fast to and integral with the lever and turn outward from its opposite ends, but in line with each other, while the cams 6 pro ect inward from the ends and into agroove around the stem of the cover or under the edge of the cap If. This function as a cam is gained by locating the pro jections 0 back of the line of the pivots, and, like the pivots, their bearing-faces are in the same line with each other.

As a means of readily grasping the outer end of the lever, it bears a knob or lug, f, in the center of the bend ofthe yoke that slightly overlaps the edge of the tightener-plate when the lever is pressed down upon it in closing the jar.

The several parts of the stopper are assembled by placing the tightener upon the cover from the upper side so that the flange of the tightener rests on the top of the disk. The lever is then held in a level plane and the pivots and cams slipped into place, as shown in Fig. 4. The parts are then reversed and the elastic ring-packing sprung over the disk and into place between it and the flange of the tightener.

The mouth of a jar or like vessel is closed by inserting in it the lower and disk-shaped bottom part of the stopper until the elastic gasket or ring is opposite the groove in the inner wall of the jar, the leverbeing so turned as not to compress the gasket, and the parts being substantially in the position shown in Fig. 3.

To fasten the stopper in place and tightly close the jar, thelever bearing the cams is then turned on its pivots in the bearings on the tightener, and the cams, striking the under side of the cap on the stem of the cover, force the tightener and the bottom of the cover together so as to compress between the bevels on the respective parts the elastic gasket and cause it to press outward into the groove in the jar.

The pivots and cams on the lever are so arranged relatively in or against'their respective bearings that they are in practically the same vertical plane, or over the center, when the parts are closed aslast described and as shownin Fig. 2, and thus they resist any tendency to unlock that may be due to pressure upon the stopper from within the jar.

I claim as my invention- 1. In a stopper for jars and thelike articles,

in combination, the cover with the beveled disk and grooved stem, the tightener -plate with the beveled flange, the elastic packingring located between the tightener and the cover, and the yoke-shaped lever with pivots bearing on the tightener-plate, and the cams engaging the cap, all substantially as described .7

2. Ina stopper for jars-and the like, in combination with a cover, a tightener and an 2011 the cap of the cover in compressing the ring, all substantially as described.

WINSLOW WV. GUPTILL. Witnesses:

CHAS. L. BURDETT,

H. R. WILLIAMS. 

